1 2 // (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard 3 // Hinnant & John Maddock 2000. 4 // Use, modification and distribution are subject to the Boost Software License, 5 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at 6 // http://www.boost.org/LICENSE_1_0.txt). 7 // 8 // See http://www.boost.org/libs/type_traits for most recent version including documentation. 9 10 11 #ifndef BOOST_TT_REMOVE_CV_HPP_INCLUDED 12 #define BOOST_TT_REMOVE_CV_HPP_INCLUDED 13 14 #include <boost/config.hpp> 15 #include <boost/detail/workaround.hpp> 16 #include <cstddef> // size_t 17 18 namespace boost { 19 20 // convert a type T to a non-cv-qualified type - remove_cv<T> 21 template <class T> struct remove_cv{ typedef T type; }; 22 template <class T> struct remove_cv<T const>{ typedef T type; }; 23 template <class T> struct remove_cv<T volatile>{ typedef T type; }; 24 template <class T> struct remove_cv<T const volatile>{ typedef T type; }; 25 26 #if !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS) 27 template <class T, std::size_t N> struct remove_cv<T const[N]>{ typedef T type[N]; }; 28 template <class T, std::size_t N> struct remove_cv<T const volatile[N]>{ typedef T type[N]; }; 29 template <class T, std::size_t N> struct remove_cv<T volatile[N]>{ typedef T type[N]; }; 30 #if !BOOST_WORKAROUND(__BORLANDC__, < 0x600) && !defined(__IBMCPP__) && !BOOST_WORKAROUND(__DMC__, BOOST_TESTED_AT(0x840)) 31 template <class T> struct remove_cv<T const[]>{ typedef T type[]; }; 32 template <class T> struct remove_cv<T const volatile[]>{ typedef T type[]; }; 33 template <class T> struct remove_cv<T volatile[]>{ typedef T type[]; }; 34 #endif 35 #endif 36 37 #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES) 38 39 template <class T> using remove_cv_t = typename remove_cv<T>::type; 40 41 #endif 42 43 } // namespace boost 44 45 #endif // BOOST_TT_REMOVE_CV_HPP_INCLUDED 46